CN111501349A - Antifouling finishing method for polyester/cotton blended textile - Google Patents
Antifouling finishing method for polyester/cotton blended textile Download PDFInfo
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- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
- D06M15/576—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them containing fluorine
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- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
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- D06M2101/16—Synthetic fibres, other than mineral fibres
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Abstract
The invention belongs to the technical field of textile fabric finishing, and particularly relates to a method for antifouling finishing of polyester/cotton blended textile fabrics. The invention relates to a method for antifouling finishing of polyester/cotton blended fabric, which comprises the following steps: (1) dispersing and grinding the silica sol and the nano silicone powder; then adding the organic silicon modified acrylate emulsion and the carboxymethyl cellulose for dispersion to obtain emulsion white liquid; (2) soaking and rolling the polyester/cotton blended fabric by using the milky white liquid as a pre-finishing agent, and then preheating for 3min at 60 ℃; using water-based perfluorinated polyurethane as a final finishing agent, and soaking for two times; (3) and (3) quickly baking the polyester/cotton blended fabric subjected to the secondary soaking and the secondary rolling, and coiling to obtain the polyester/cotton blended fabric. The polyester/cotton blended textile treated by the method has excellent antifouling functions of water resistance, oil resistance and the like, and meanwhile, the antifouling durability is good.
Description
Technical Field
The invention belongs to the technical field of textile fabric finishing, and particularly relates to a method for antifouling finishing of polyester/cotton blended textile fabrics.
Background
As is well known, after-finishing of the fabric can improve the product quality, increase new varieties of the fabric, endow the fabric with high added value and remarkably improve the economic benefit of the fabric. Therefore, the research and production of the fabric after finishing are more and more important at home and abroad. With the rapid development of functional textiles, the requirements on the functional after-finishing technology of the textiles are higher and higher, and the research and application of various enterprises and scientific research institutions on the functionalization of the textiles are gradually strengthened. The functional after-finishing mainly comprises moisture absorption, quick drying, water and oil resistance, flame retardance, static resistance, antibiosis and the like.
The cotton fabric has excellent air permeability and is widely applied to textiles. However, cotton fabrics have poor dimensional stability, are easy to shrink, and are easy to wrinkle. Therefore, polyester/cotton blended textiles of composite polyester have been developed. The polyester/cotton blended textile has the characteristics of wear resistance, wrinkle resistance and stiffness of polyester fibers and the characteristic of softness and air permeability of cotton fibers, and is gradually applied to high-grade textiles. However, since the polyester fiber is a hydrophobic fiber, it is difficult to clean the textile when the textile is stained with splash oil due to strong adsorption force to the oily nature. Therefore, the polyester/cotton blended fabric needs to be subjected to hydrophobic and oleophobic after-treatment.
Generally, the water-repellent and oil-repellent function is imparted to fabric by applying a three-proofing finishing agent with a special molecular structure on the fabric, changing the composition of a fiber surface layer, reducing the surface energy of the fabric, making water and oil not easily spread on the fabric surface, firmly attaching to the fiber or chemically bonding with the fiber, and making the fabric not wetted by water and common edible oil. A large number of pores are reserved among fibers and among yarns of the finished fabric, so that the fabric still keeps good air permeability and moisture permeability, is beneficial to microclimate adjustment between human skin and clothes, increases wearing comfort and is suitable for clothes fabrics.
At present, the hydrophobic and oleophobic finishing agent is mainly a fluorine-containing finishing agent and belongs to a special surfactant. The fluorine-containing finishing agent plays an important role in fabric antifouling because of good waterproof and oil-proof properties. Early commercial fluorochemical fabric finishes were based on fluorochemical carboxylic acid complexes followed by fluoropolymers. At present, the fluorine-containing finishing agent is mainly a fluorine-containing polymer such as fluorine-containing polyacrylate, fluorine-containing polyurethane and the like, and is a mainstream fluorine-containing textile finishing agent in the market at present.
Because the fluorine-containing finishing agent has the characteristics of three high two hydrophobic properties, namely high surface activity, high chemical stability, high thermal stability, hydrophobicity and oleophobicity, the fluorine-containing finishing agent is mostly selected when the antifouling finishing of textiles is carried out. However, when the fluorine-containing finishing agent is used for antifouling finishing of polyester/cotton blended textiles, because polyester fibers are hydrophobic and cotton fibers absorb water, the fluorine-containing finishing agent is difficult to form a film on the surface of the blended textiles firmly at the same time, and the treated polyester/cotton blended textiles treated by the fluorine-containing finishing agent are easy to separate from the fibers during washing although the antifouling performance is excellent, so that the antifouling durability is poor.
Disclosure of Invention
The invention discloses an antifouling finishing method for polyester/cotton blended fabrics, aiming at the defect that the fluorine-containing finishing agent is difficult to form a film on the surface of textile fibers firmly when the polyester/cotton blended fabrics are treated at present.
A method for antifouling finishing of polyester/cotton blended textile comprises the following steps:
(1) dispersing and grinding the silica sol and the nano silicone powder; then adding the organic silicon modified acrylate emulsion and the carboxymethyl cellulose for dispersion to obtain emulsion white liquid;
(2) taking the milky white liquid obtained in the step (1) as a pre-finishing agent, soaking and rolling the polyester/cotton blended fabric once to enable the rolling residual rate to be 80%, and then preheating for 3min at 60 ℃; further using water-based perfluorinated polyurethane as a final finishing agent, carrying out secondary soaking and secondary rolling, wherein the rolling residue rate is 70-75%;
(3) and pre-drying the polyester/cotton blended fabric subjected to the secondary soaking and the secondary rolling at the temperature of 80-100 ℃ for 10-15 min, quickly drying at the temperature of 120-130 ℃ for 30-60 s, and coiling to obtain the antifouling polyester/cotton blended fabric.
Furthermore, the silica sol in the step (1) is 10-20 nm of colloidal particles, the solid content is 15-25 wt% of the silica sol, the silica sol has good dispersibility and permeability, when the water in the silica sol is evaporated, the colloidal particles are firmly attached to the surface of an object, and silica bonding is formed among the particles, so that the silica sol is a good adhesive, and the characteristics of wear resistance, washing resistance and pollution resistance are provided for the fabric.
Furthermore, the nano-silicone powder in the step (1) is ultra-high molecular weight silicone powder HY-100A, so that the surface glossiness, scratch resistance and smoothness of the product can be improved; has good stability and non-migration.
Further, the organic silicon modified acrylate emulsion in the step (1) is organic silicon modified acrylate emulsion SA108, the viscosity is 1000-4000 CP, and the solid content is 45-48%. Organic silicon molecules in the silicone-acrylate emulsion are combined to acrylate macromolecules in a form of Si-0 chemical bonds, and the acrylate emulsion is modified in structure and composition.
Further, the mass ratio of the silica sol, the nano-silicone powder, the organic silicon modified acrylate emulsion and the carboxymethyl cellulose in the step (1) is 30-50: 3-5: 30-40: 1-3.
Further, the polyester/cotton blended fabric in the step (2) is a commercially available 65/35 polyester/cotton blended fabric.
Further, the step (2) of padding is to pad the polyester/cotton blended fabric by using a padding machine HQ-007A. The padding is to process the fabric, the polyester/cotton blended fabric is soaked in a padding machine groove filled with biological enzyme, after the biological enzyme soaks and softens the fabric, the fabric is quickly squeezed and padded through two rollers, and then steam drying is carried out, so that the treatment of textile products is completed. The padding has small damage to fibers, high quality of treated fabrics and soft hand feeling, the chroma, the pH value and the COD value of the treated wastewater are far lower than those of the traditional process, the burden of sewage treatment is reduced, the ecological environment protection is facilitated, and the method also has the characteristics of high production efficiency, low labor intensity, energy conservation, water conservation and the like.
The loss of the fiber of the polyester/cotton blended fabric caused by single padding is avoided through twice padding, the damage of the twice padding to the polyester/cotton blended fabric is small, the treated polyester/cotton blended fabric has better hand feeling, and the soft finishing agent is firmly attached to the fiber of the polyester/cotton blended fabric by twice padding.
The residual ratio in the step (2) of the invention is the percentage of the weight of the solution on the cloth cover after the polyester/cotton blended fabric is soaked in the solution on the cloth cover through the size box and is rolled by the rolling rod to the weight of the original fabric before padding. The percent reduction, also called the wet pick-up, is the weight of the liquid carried on the fabric as a percentage of the fabric's own weight. The accurate expression is that the weight of the solution on the cloth cover after the solution is fed through the size box and rolled by the rolling rod is the percentage of the original weight of the fabric before padding. The two-dipping and two-rolling refers to that the fabric is rolled by a roller after being dipped in the dye solution and is repeated twice. A, the fabric is heavy before padding; and B, the fabric after padding is heavy, and the padding rate is = (B-A)/A100%. Such as: the original weight of the fabric is 100 g, after two times of padding, the fabric weighs 180 g, and the percent of padding is 80%.
Further, the water-based perfluorinated polyurethane in the step (2) is perfluorinated polyurethane finishing liquid ABS 3001MF and has the water and oil resistance. The water-proof and oil-proof finishing is to uniformly coat a finishing agent with a special molecular structure on the surface of the fabric, firmly attach the finishing agent to fibers or chemically combine the finishing agent with the fibers to form a film on the surface of yarns in a crosslinking manner so as to effectively prevent water and oil from entering the interior of the fibers or between the fibers, thereby enabling the fabric not to be easily wetted by water and common oils.
According to the invention, the silicone powder and the silica sol are ground and compounded, and then the silicone powder, the organic silicon modified acrylate emulsion and the carboxymethyl cellulose are dispersed into the milky white liquid, the milky white liquid is used for pre-finishing the polyester/cotton blended textile fabric to ensure that the polyester/cotton blended textile fabric has good wettability, and then the waterborne perfluorinated polyurethane finishing agent is used for finishing. The silicone powder adopts nanoscale ultrahigh molecular weight silicone powder, and has the remarkable advantages that when the nanoscale ultrahigh molecular weight silicone powder is used for finishing the polyester/cotton blended textile, the perfluorinated polyurethane and the silicone powder occupy the places respectively and coordinate with each other, the hydrophobic, oleophobic and antifouling functions are endowed to the polyester/cotton blended textile, and meanwhile, when the after-finishing heating treatment is carried out, the perfluorinated polyurethane is formed into a film, the ultrahigh molecular weight silicone powder is melted into the film, and the polyester/cotton blended textile is subjected to fiber permeation to form firm adhesion, so that the adhesion firmness of the finishing agent is effectively improved.
According to the invention, after the polyester/cotton blended fabric is padded in the pre-finishing agent, the finishing agent is padded again, so that the polyester/cotton blended fabric is endowed with hydrophobic, oleophobic and antifouling functions, and the adhesion firmness of the finishing agent is improved. Compared with the prior art: the polyester/cotton blended textile treated by the method has excellent antifouling functions of water resistance, oil resistance and the like, and meanwhile, the antifouling durability is good.
Drawings
FIG. 1: is a flow chart of the invention for finishing the polyester/cotton blended textile;
FIG. 2: the comparative photos of the oleophobic contact angle before and after washing of the polyester-cotton blended fabric finished in the embodiment 1 of the invention are adopted, wherein a is the photo before washing, and b is the photo after washing, the polyester-cotton blended fabric finished in the embodiment 1 keeps good oleophobic property before and after washing, and oil drops are spherical;
FIG. 3: comparative example 1 comparative photos of oleophobic contact angles before and after washing of the finished polyester-cotton blended fabric, wherein c is a photo before washing, d is a photo after washing, and the change of the oleophobic contact angle of the finished polyester-cotton blended fabric in comparative example 1 before and after washing is larger.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments, but it should not be construed that the scope of the present invention is limited to the following examples. Various substitutions and alterations can be made by those skilled in the art and by conventional means without departing from the spirit of the method of the invention described above.
Example 1
A method for antifouling finishing of polyester/cotton blended textile comprises the following steps:
(1) dispersing and grinding the silica sol and the nano silicone powder; then adding the organic silicon modified acrylate emulsion and the carboxymethyl cellulose for dispersion to obtain emulsion white liquid; the silica sol is 15nm colloidal particles, and the solid content is 20 wt%; the nano-silicone powder is ultra-high molecular weight silicone powder HY-100A; the organic silicon modified acrylate emulsion is organic silicon modified acrylate emulsion SA108, the viscosity is 1000-4000 CP, and the solid content is 45-48%; the mass ratio of the silica sol to the nano-silicone powder to the organic silicon modified acrylate emulsion to the carboxymethyl cellulose is 40:4:35: 2;
(2) taking the milky white liquid obtained in the step (1) as a pre-finishing agent, soaking and rolling the polyester/cotton blended fabric once to enable the rolling residual rate to be 80%, and then preheating for 3min at 60 ℃; further using water-based perfluorinated polyurethane as a final finishing agent, soaking twice and rolling twice, wherein the rolling residue rate is 72%; the polyester/cotton blended fabric is a commercially available 65/35 polyester/cotton blended fabric; the step of soaking and rolling is to use a padding machine HQ-007A to pad the polyester/cotton blended fabric; the residual ratio is the percentage of the weight of the solution on the cloth cover after the polyester/cotton blended fabric is soaked in the solution on the cloth cover through a slurry tank and is rolled by a rolling rod to the weight of the original fabric before padding; the water-based perfluorinated polyurethane is perfluorinated polyurethane finishing liquid ABS 3001MF and has the water-proof and oil-proof performance.
(3) And pre-drying the polyester/cotton blended fabric subjected to the secondary soaking and the secondary rolling at the temperature of 90 ℃ for 13min, quickly drying the polyester/cotton blended fabric at the temperature of 125 ℃ for 40s, and coiling to obtain the antifouling polyester/cotton blended fabric.
Example 2
A method for antifouling finishing of polyester/cotton blended textile comprises the following steps:
(1) dispersing and grinding the silica sol and the nano silicone powder; then adding the organic silicon modified acrylate emulsion and the carboxymethyl cellulose for dispersion to obtain emulsion white liquid; the silica sol is a silica sol with 20nm of colloidal particles and 15wt% of solid content; the nano-silicone powder is ultra-high molecular weight silicone powder HY-100A; the organic silicon modified acrylate emulsion is organic silicon modified acrylate emulsion SA108, the viscosity is 1000-4000 CP, and the solid content is 45-48%; the mass ratio of the silica sol to the nano-silicone powder to the organic silicon modified acrylate emulsion to the carboxymethyl cellulose is 30: 5:30: 1;
(2) taking the milky white liquid obtained in the step (1) as a pre-finishing agent, soaking and rolling the polyester/cotton blended fabric once to enable the rolling residual rate to be 80%, and then preheating for 3min at 60 ℃; further using water-based perfluorinated polyurethane as a final finishing agent, soaking twice and rolling twice, wherein the rolling residue rate is 75%; the polyester/cotton blended fabric is a commercially available 65/35 polyester/cotton blended fabric; the step of soaking and rolling is to use a padding machine HQ-007A to pad the polyester/cotton blended fabric; the residual ratio is the percentage of the weight of the solution on the cloth cover after the polyester/cotton blended fabric is soaked in the solution on the cloth cover through a slurry tank and is rolled by a rolling rod to the weight of the original fabric before padding; the water-based perfluorinated polyurethane is perfluorinated polyurethane finishing liquid ABS 3001MF and has the water-proof and oil-proof performance.
(3) And pre-drying the polyester/cotton blended fabric subjected to the secondary soaking and the secondary rolling at the temperature of 100 ℃ for 10min, quickly drying the polyester/cotton blended fabric at the temperature of 120 ℃ for 30s, and coiling to obtain the antifouling polyester/cotton blended fabric.
Example 3
A method for antifouling finishing of polyester/cotton blended textile comprises the following steps:
(1) dispersing and grinding the silica sol and the nano silicone powder; then adding the organic silicon modified acrylate emulsion and the carboxymethyl cellulose for dispersion to obtain emulsion white liquid; the silica sol is a silica sol with 17nm of colloidal particles and 20wt% of solid content; the nano-silicone powder is ultra-high molecular weight silicone powder HY-100A; the organic silicon modified acrylate emulsion is organic silicon modified acrylate emulsion SA108, the viscosity is 1000-4000 CP, and the solid content is 45-48%; the mass ratio of the silica sol to the nano-silicone powder to the organic silicon modified acrylate emulsion to the carboxymethyl cellulose is 50:5: 40: 3;
(2) taking the milky white liquid obtained in the step (1) as a pre-finishing agent, soaking and rolling the polyester/cotton blended fabric once to enable the rolling residual rate to be 80%, and then preheating for 3min at 60 ℃; further using water-based perfluorinated polyurethane as a final finishing agent, soaking twice and rolling twice, wherein the rolling residue rate is 70%; the polyester/cotton blended fabric is a commercially available 65/35 polyester/cotton blended fabric; the step of soaking and rolling is to use a padding machine HQ-007A to pad the polyester/cotton blended fabric; the residual ratio is the percentage of the weight of the solution on the cloth cover after the polyester/cotton blended fabric is soaked in the solution on the cloth cover through a slurry tank and is rolled by a rolling rod to the weight of the original fabric before padding; the water-based perfluorinated polyurethane is perfluorinated polyurethane finishing liquid ABS 3001MF and has the water-proof and oil-proof performance.
(3) And pre-drying the polyester/cotton blended fabric subjected to the secondary soaking and the secondary rolling at the temperature of 80 ℃ for 15min, quickly drying the polyester/cotton blended fabric at the temperature of 125 ℃ for 40s, and coiling to obtain the antifouling polyester/cotton blended fabric.
Example 4
A method for antifouling finishing of polyester/cotton blended textile comprises the following steps:
(1) dispersing and grinding the silica sol and the nano silicone powder; then adding the organic silicon modified acrylate emulsion and the carboxymethyl cellulose for dispersion to obtain emulsion white liquid; the silica sol is a silica sol body with the colloidal particles of 18nm and the solid content of 18 wt%; the nano-silicone powder is ultra-high molecular weight silicone powder HY-100A; the organic silicon modified acrylate emulsion is organic silicon modified acrylate emulsion SA108, the viscosity is 1000-4000 CP, and the solid content is 46%; the mass ratio of the silica sol to the nano-silicone powder to the organic silicon modified acrylate emulsion to the carboxymethyl cellulose is 45: 5:35: 2;
(2) taking the milky white liquid obtained in the step (1) as a pre-finishing agent, soaking and rolling the polyester/cotton blended fabric once to enable the rolling residual rate to be 80%, and then preheating for 3min at 60 ℃; further using water-based perfluorinated polyurethane as a final finishing agent, soaking for two times and rolling for two times, wherein the rolling residue rate is 74%; the polyester/cotton blended fabric is a commercially available 65/35 polyester/cotton blended fabric; the step of soaking and rolling is to use a padding machine HQ-007A to pad the polyester/cotton blended fabric; the residual ratio is the percentage of the weight of the solution on the cloth cover after the polyester/cotton blended fabric is soaked in the solution on the cloth cover through a slurry tank and is rolled by a rolling rod to the weight of the original fabric before padding; the water-based perfluorinated polyurethane is perfluorinated polyurethane finishing liquid ABS 3001MF and has the water-proof and oil-proof performance.
(3) And pre-drying the polyester/cotton blended fabric subjected to the secondary soaking and the secondary rolling at the temperature of 95 ℃ for 12min, quickly drying the polyester/cotton blended fabric at the temperature of 122 ℃ for 50s, and coiling to obtain the antifouling polyester/cotton blended fabric.
Example 5
A method for antifouling finishing of polyester/cotton blended textile comprises the following steps:
(1) dispersing and grinding the silica sol and the nano silicone powder; then adding the organic silicon modified acrylate emulsion and the carboxymethyl cellulose for dispersion to obtain emulsion white liquid; the silica sol is a silica sol with the colloidal particle size of 19nm and the solid content of 17 wt%; the nano-silicone powder is ultra-high molecular weight silicone powder HY-100A; the organic silicon modified acrylate emulsion is organic silicon modified acrylate emulsion SA108, the viscosity is 1000-4000 CP, and the solid content is 45-48%; the mass ratio of the silica sol to the nano-silicone powder to the organic silicon modified acrylate emulsion to the carboxymethyl cellulose is 44: 5:38: 3;
(2) taking the milky white liquid obtained in the step (1) as a pre-finishing agent, soaking and rolling the polyester/cotton blended fabric once to enable the rolling residual rate to be 80%, and then preheating for 3min at 60 ℃; further using water-based perfluorinated polyurethane as a final finishing agent, soaking for two times and rolling for two times, wherein the rolling residue rate is 74%; the polyester/cotton blended fabric is a commercially available 65/35 polyester/cotton blended fabric; the step of soaking and rolling is to use a padding machine HQ-007A to pad the polyester/cotton blended fabric; the residual ratio is the percentage of the weight of the solution on the cloth cover after the polyester/cotton blended fabric is soaked in the solution on the cloth cover through a slurry tank and is rolled by a rolling rod to the weight of the original fabric before padding; the water-based perfluorinated polyurethane is perfluorinated polyurethane finishing liquid ABS 3001MF and has the water-proof and oil-proof performance.
(3) And pre-drying the polyester/cotton blended fabric subjected to the secondary soaking and the secondary rolling at the temperature of 85 ℃ for 12min, quickly drying the polyester/cotton blended fabric at the temperature of 128 ℃ for 50s, and coiling to obtain the antifouling polyester/cotton blended fabric.
Example 6
A method for antifouling finishing of polyester/cotton blended textile comprises the following steps:
(1) dispersing and grinding the silica sol and the nano silicone powder; then adding the organic silicon modified acrylate emulsion and the carboxymethyl cellulose for dispersion to obtain emulsion white liquid; the silica sol is silica sol with 12nm of colloidal particles and 16wt% of solid content; the nano-silicone powder is ultra-high molecular weight silicone powder HY-100A; the organic silicon modified acrylate emulsion is organic silicon modified acrylate emulsion SA108, the viscosity is 1000-4000 CP, and the solid content is 45-48%; the mass ratio of the silica sol to the nano-silicone powder to the organic silicon modified acrylate emulsion to the carboxymethyl cellulose is 35: 5:30: 3;
(2) taking the milky white liquid obtained in the step (1) as a pre-finishing agent, soaking and rolling the polyester/cotton blended fabric once to enable the rolling residual rate to be 80%, and then preheating for 3min at 60 ℃; further using water-based perfluorinated polyurethane as a final finishing agent, soaking twice and rolling twice, wherein the rolling residue rate is 71%; the polyester/cotton blended fabric is a commercially available 65/35 polyester/cotton blended fabric; the step of soaking and rolling is to use a padding machine HQ-007A to pad the polyester/cotton blended fabric; the residual ratio is the percentage of the weight of the solution on the cloth cover after the polyester/cotton blended fabric is soaked in the solution on the cloth cover through a slurry tank and is rolled by a rolling rod to the weight of the original fabric before padding; the water-based perfluorinated polyurethane is perfluorinated polyurethane finishing liquid ABS 3001MF and has the water-proof and oil-proof performance.
(3) And pre-drying the polyester/cotton blended fabric subjected to the secondary soaking and the secondary rolling at the temperature of 88 ℃ for 13min, quickly drying the polyester/cotton blended fabric at the temperature of 128 ℃ for 35s, and coiling to obtain the antifouling polyester/cotton blended fabric.
Comparative example 1
The addition of the nano-silicone powder is omitted, the balance is consistent with that in the embodiment 1, the firm adhesion formed by the penetration of the ultra-high molecular weight silicone powder on the fiber of the polyester/cotton blended textile is avoided, so the adhesion firmness of the finishing agent is not improved, and the hydrophobic, oleophobic and antifouling performance of the finished polyester/cotton blended textile is reduced after washing.
Comparative example 2
Is an unfinished, commercially available 65/35 polyester/cotton blend fabric.
The blended textiles of example 1 and comparative examples 1-2 were washed with reference to GB/T8629-. The textiles were washed 10 times. The change in contact angle before and after washing was tested.
The hydrophobic, oleophobic and antifouling performance of the polyester/cotton blended textile is tested by adopting a JC2000C1 static drop contact angle measuring instrument to test the contact angle, injecting water and edible oil on the surface of the textile by a vertical injector, forming an approximately circular liquid drop on the surface of the textile, capturing an image from the shape or the side view of the liquid drop by using a high-resolution camera, and measuring the contact angle.
The test results are shown in table 1.
TABLE 1
In conclusion, the polyester/cotton blended textile fabric finished by the method has excellent antifouling functions of water resistance, oil resistance and the like, after washing, the polyester/cotton blended textile fabric is firmly attached due to the silica sol and the silicone powder, still has good hydrophobic, oleophobic and antifouling performances, and has good antifouling durability.
Claims (8)
1. The method for antifouling finishing of the polyester/cotton blended textile is characterized by comprising the following steps:
(1) dispersing and grinding the silica sol and the nano silicone powder; then adding the organic silicon modified acrylate emulsion and the carboxymethyl cellulose for dispersion to obtain emulsion white liquid;
(2) taking the milky white liquid obtained in the step (1) as a pre-finishing agent, soaking and rolling the polyester/cotton blended fabric once to enable the rolling residual rate to be 80%, and then preheating for 3min at 60 ℃; further using water-based perfluorinated polyurethane as a final finishing agent, carrying out secondary soaking and secondary rolling, wherein the rolling residue rate is 70-75%;
(3) and pre-drying the polyester/cotton blended fabric subjected to the secondary soaking and the secondary rolling at the temperature of 80-100 ℃ for 10-15 min, quickly drying at the temperature of 120-130 ℃ for 30-60 s, and coiling to obtain the antifouling polyester/cotton blended fabric.
2. The antifouling finishing method for polyester/cotton blended textile fabric according to claim 1, wherein the silica sol in the step (1) is silica sol with colloidal particles of 10-20 nm and solid content of 15-25 wt%.
3. The method for antifouling finishing of polyester/cotton blended fabric according to claim 1, wherein the nano silicone powder in step (1) is ultra-high molecular weight silicone powder HY-100A.
4. The method for antifouling finishing of polyester/cotton blended textile fabric according to claim 1, wherein the organosilicon modified acrylate emulsion in the step (1) is an organosilicon modified acrylate emulsion SA108, the viscosity is 1000-4000 CP, and the solid content is 45-48%.
5. The antifouling finishing method for the polyester/cotton blended fabric, according to claim 1, is characterized in that the mass ratio of the silica sol, the nano-silicone powder, the organosilicon modified acrylate emulsion and the carboxymethyl cellulose in the step (1) is 30-50: 3-5: 30-40: 1-3.
6. The method for antifouling finishing of polyester/cotton blended textile fabric according to claim 1, wherein the polyester/cotton blended textile fabric in the step (2) is 65/35 polyester/cotton blended textile fabric sold in the market.
7. The method for antifouling finishing of the polyester/cotton blended fabric, according to the claim 1, wherein the soaking and rolling in the step (2) is the soaking and rolling of the polyester/cotton blended fabric by using a soaking and rolling machine HQ-007A.
8. The antifouling finishing method for polyester/cotton blended textile fabric according to claim 1, wherein the aqueous perfluorinated polyurethane in the step (2) is perfluorinated polyurethane finishing liquid ABS 3001 MF.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114000242A (en) * | 2021-10-14 | 2022-02-01 | 福建恒春织造股份有限公司 | Waterproof stain-resistant fastening tape and preparation method thereof |
| CN114960215A (en) * | 2022-06-09 | 2022-08-30 | 杭州天瑞印染有限公司 | Three-proofing finishing process for rayon polyester fabric |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000242A (en) * | 2021-10-14 | 2022-02-01 | 福建恒春织造股份有限公司 | Waterproof stain-resistant fastening tape and preparation method thereof |
| CN114960215A (en) * | 2022-06-09 | 2022-08-30 | 杭州天瑞印染有限公司 | Three-proofing finishing process for rayon polyester fabric |
| CN114960215B (en) * | 2022-06-09 | 2023-08-29 | 杭州天瑞印染有限公司 | Three-proofing finishing process for human cotton polyester fabric |
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